Adesso Ergonomic Trackball Keyboard
- Built-in Trackball
- With 2.4GHz RF wireless. 9 meters range.
- Membrane Key Layout: 105-Key US Layout
- Battery: (2) AAA, Included
- Windows Hotkeys: 13 (Home, Back, Forward, Refresh, Search, Favorites, Sleep, Wake Up, Power Off, Calculator, My Computer, Music and Email )
- Multimedia Hotkeys: 7 (Play/Pause, Previous Track, Next Track, Volume Up, Volume Down, Mute and Eject)
this does not seems to be a quality product.
cheaply made and noisy.
there's a touchpad version:
Adesso TRU-FORM PRO ERGONOMIC CONTOUR TOUCHPAD USB KEYB BLK W/HOTKEYS Buy at amazon
Keyboard with Trackball